Multi-layered polymer hydrophone array

Communications – electrical: acoustic wave systems and devices – Distance or direction finding – With beam steering – scanning – or focussing

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367155, 367157, 367162, 310337, 310800, H04R 1700

Patent

active

048051578

ABSTRACT:
A piezoelectric polymer (PVDF) hydrophone array consists of multiple layers disposed symmetrically about a stiffener layer. The stiffener layer prevents flexural modes in the operating frequency band and provides a mounting structure for acceleration noise cancellation. The piezoelectric polymer layers are attached to the stiffener layer either directly or through intervening layers which provide mechanical vibration isolation of the polymer and stiffener layers.

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